Use const variables when applicable

scripts/Utils/findAll.ts

@@ -1,5 +1,5 @@
 export function* findAll(className: string): IterableIterator<HTMLElement> {
-	let elements = document.getElementsByClassName(className)
+	const elements = document.getElementsByClassName(className)
 
 	for(let i = 0; i < elements.length; ++i) {
 		yield elements[i] as HTMLElement
@@ -7,7 +7,7 @@ export function* findAll(className: string): IterableIterator<HTMLElement> {
 }
 
 export function* findAllInside(className: string, root: HTMLElement): IterableIterator<HTMLElement> {
-	let elements = root.getElementsByClassName(className)
+	const elements = root.getElementsByClassName(className)
 
 	for(let i = 0; i < elements.length; ++i) {
 		yield elements[i] as HTMLElement

scripts/Utils/hexToHSL.ts

@@ -1,5 +1,5 @@
 export function hexToHSL(hex: string) {
-	let result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)
+	const result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex)
 
 	if(!result) {
 		return null
@@ -13,17 +13,17 @@ export function hexToHSL(hex: string) {
 	g /= 255
 	b /= 255
 
-	let max = Math.max(r, g, b)
-	let min = Math.min(r, g, b)
+	const max = Math.max(r, g, b)
+	const min = Math.min(r, g, b)
 
 	let h = 0
 	let s = 0
-	let l = (max + min) / 2
+	const l = (max + min) / 2
 
 	if(max == min) {
 		h = s = 0
 	} else {
-		let d = max - min
+		const d = max - min
 		s = l > 0.5 ? d / (2 - max - min) : d / (max + min)
 
 		switch(max) {

scripts/Utils/swapElements.ts

@@ -1,7 +1,7 @@
 // swapElements assumes that both elements have valid parent nodes.
 export function swapElements(a: Node, b: Node) {
-	let bParent = b.parentNode as Node
-	let bNext = b.nextSibling
+	const bParent = b.parentNode as Node
+	const bNext = b.nextSibling
 
 	// Special case for when a is the next sibling of b
 	if(bNext === a) {

scripts/Utils/uploadWithProgress.ts

@@ -1,6 +1,6 @@
 export function uploadWithProgress(url, options: RequestInit, onProgress: ((ev: ProgressEvent) => any) | null): Promise<string> {
 	return new Promise((resolve, reject) => {
-		let xhr = new XMLHttpRequest()
+		const xhr = new XMLHttpRequest()
 
 		xhr.onload = () => {
 			if(xhr.status >= 400) {
@@ -21,7 +21,7 @@ export function uploadWithProgress(url, options: RequestInit, onProgress: ((ev:
 		xhr.open(options.method || "GET", url, true)
 
 		if(options.headers) {
-			for(let key in options.headers) {
+			for(const key in options.headers) {
 				xhr.setRequestHeader(key, options.headers[key])
 			}
 		}